THE GLACIOLOGICAL STUDIES OF THE BAFFIN ISLAND EXPEDITION, 1950 Part V ON THE VARI A TION OF THE S H EAR STRESS ON THE BED OF AN ICE CAP By SVENN ORVIG
ABST RACT. Some recent wor k by Dr. J. F. Nye on the calculation of the thickness of ice sh eets has prompted the author to app ly Nye's formula t o the Barnes Ice Cap in Baffin Island. A g ravim etric survey o f the southern lobe was carried out in 1950, and the data from fo ur of the traverse...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.453.155 http://www.igsoc.org:8080/journal/2/14/igs_journal_vol02_issue014_pg242-247.pdf |
| Summary: | ABST RACT. Some recent wor k by Dr. J. F. Nye on the calculation of the thickness of ice sh eets has prompted the author to app ly Nye's formula t o the Barnes Ice Cap in Baffin Island. A g ravim etric survey o f the southern lobe was carried out in 1950, and the data from fo ur of the traverses have been used to calculat e the variation of the shear s tress on t he bed. Som e of the values ob tained ar e exceptionally low, possibly explained by the fact that the lines of travel over the surface d o n ot necessarily correspond to the lines of g reatest slope or lines of flow. Only in one direction are the values relatively high, and it is concluded that there is a considerably great er m ovemen t of the ice in this direction. T his con clusion is in agreem ent with observation s on the ground. R EsUME. D es investigations recentes du docteur]. F. Nye it l'egard d e la methode de calcu ler l'epaisseur de |
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